W81282F Datasheet, PDF (8/18 Pages) Winbond – USB Keyboard Controller with 4 Ports Hub

W81282F
PRELIMINARY
28
BUSPWR#
IUD2 ^{Buspower/Selfpower control setting. This pin should be floated or}
D
tied to VDD.
29
SO17
IOU2P ^{This pin is function of Scan Out line 17.}
O
30
GANGED#
IUD2 ^{Ganged/Individual downstream power switch control setting.}
U
Default is Individual mode.
31
LEDEN4#
IOU2P ^{Downstream port4 LED. Active low when port4 enable.}
O
32
RA
IUD2 ^{This pin is a Rotation A input for consumer HID application.}
U
33
LEDEN3#
IOU2P ^{Downstream port3 LED. Active low when port3 enable.}
O
34
RB
IUD2 ^{This pin is a Rotation B input for consumer HID application.}
U
35
LEDEN2#
IOU2P ^{Downstream port2 LED. Active low when port2 enable.}
O
36
PLLE
IUD2 ^{PLL clock generator enable/disable control. It should be tied to}
U
VDD. (PLLE=1, clock=12MHz ; PLLE=0,clock=48MHz)
37
LEDEN1#
IOU2P ^{Downstream port1 LED. Active low when port1 enable.}
O
38
N.C.
IUD2 ^{No connection. This pin should be floated.}
U
39
N.C.
IUD2 ^{No connection. This pin should be floated.}
U
40
GND
Power0 ^{Digital ground}
-
41
XTAL1
OSCM ^{Clock In. (12MHz when PLLE=1, 48MHz when PLLE=0)}
-
42
XTAL2
OSCM ^{Clock Out.}
-
43
N.C.
IUD2 ^{No connection. This pin should be floated.}
D
44
SO00 (P07)
IOUD2 ^{Port 0.7 and function of Scan Out line 0.}
U
45
VDD
Power1 ^{Digital supply voltage.}
-
46
SO01 (P06)
IOUD2 ^{Port 0.6 and function of Scan Out line 1.}
U
47
SO02 (P05)
IOUD2 ^{Port 0.5 and function of Scan Out line 2.}
U
48
SO18
O2
This pin is function of Scan Out line 18.
-
49
SO03 (P04)
IOUD2 ^{Port 0.4 and function of Scan Out line 3.}
U
50
OVRI4#
IUD2T ^{Downstream port4 over-current status input. Active low.}
-
51
SO04 (P03)
IOUD2 ^{Port 0.3 and function of Scan Out line 4.}
U
52
UPWEN4#
O2
Downstream port4 power control. Active low.
-
53
OVRI3#
IUD2T ^{Downstream port3 over-current status input. Active low.}
-
54
SO05 (P02)
IOUD2 ^{Port 0.2 and function of Scan Out line 5.}
U
55
UPWEN3#
O2
Downstream port3 power control. Active low.
-
56
SO06 (P01)
IOUD2 ^{Port 0.1 and function of Scan Out line 6.}
U
57
LEDEN0#
IOU2P ^{Up_stream port LED. Active low when up_stream port enable.}
O
58
SO07 (P00)
IOUD2 ^{Port 0.0 and function of Scan Out line 7.}
U
Publication Release Date: Aug. 1999
-5-
Revision 0.5